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Minimum Order
Localité:
china
Prix de commande minimale:
-
Commande minimale:
1
Packaging Detail:
-
Delivery Time:
-
Supplying Ability:
10000
Payment Type:
-
Personne àcontacter Mr. Kevin
caitianlu, shenzhen, guangdong
Overview The HT***4 is designed as a compact, high performance, and low cost VoIP Analog Terminal Adapter (FXS Gateway). It comes with a FXS port to interface with a traditional analog phone set or a PBX trunk line for VoIP communications. By connecting a PSTN line to the Bypass port, the phone set connected to the FXS port can also access the PSTN line for traditional telephone service. The HT***4 is a full featured FXS gateway and is designed for easy installation and configuration. It is an ideal low cost solution for travelers and SOHO users. Key Features Open Standard VoIP Protocols (ITU H.**3 V4 and IETF SIP V2) Two *0/**0 Ethernet for WAN / LAN connections Peer-to-Peer IP Calls Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer Line Echo Cancellation VLAN and QoS support NAT Transversal and Router functions Voice prompts, HTTP Web, Auto Provision support for configuration and updates Highly stable embedded Linux operating system in high performance ARM 9 Processor Basic Features Two RJ**1 FXS port for traditional phone set or PBX&#**9;s trunk line Two RJ**1 port for connection to PSTN line (Bypass function only) LEDs for Power, Ready, Status, WAN, PC, FXS Call Forward, Call Hold, Call Transfer Dial Plan Caller ID Enhanced Features Dynamic selection of codec Advanced jitter buffer Automatic traversal of NAT and firewall VLAN / Qos Router Echo cancellation for Speakerphone Comfort noise generation (CNG) Voice activity detection (VAD) Auto provisioning (requires auto provisioning server) On line firmware upgrade Multi-language support: English and Chinese Supported Standards ITU: H.**3 V4, H.**5, H.**5, H.**5, H.**0 RFC ***9 - RTP/RTCP RFC ***7 – SDP RFC ***3 – RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals RFC ***6 – SIP INFO Method RFC ***1 – SIP RFC ***4 – Offer/Answer model with SDP RFC ***5 – SIP REFER Method RF
